From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3FFFAC7EE2F for ; Fri, 9 Jun 2023 06:54:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238546AbjFIGyQ (ORCPT ); Fri, 9 Jun 2023 02:54:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56602 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238475AbjFIGyK (ORCPT ); Fri, 9 Jun 2023 02:54:10 -0400 Received: from aer-iport-3.cisco.com (aer-iport-3.cisco.com [173.38.203.53]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 948FF2D7B for ; Thu, 8 Jun 2023 23:54:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=990; q=dns/txt; s=iport; t=1686293648; x=1687503248; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=KDPrHehaSVMJttr8Gt36YOXEapeyJb82JDuVYvh3n5U=; b=Cw/psnslNWSe2n+llZTMr27e3IiI2xj6bwGIGqSXVxov6zwehJZ7Z/G6 YzEoBuDjhNADkclRNQNlkI+9Ew2Yse3S7MLcFzlK+g6zuCaJWj6BuVngU GI5RdoREerrFL/ucKssTTMNJjTqQIUtXvVNgKPvoi4ol4FrfIhdA7fIfY k=; X-CSE-ConnectionGUID: ULSvVzoKRXmkfew1mO+c9w== X-CSE-MsgGUID: IP/aoAT3QL6NMNrZ+AtJtA== X-IronPort-AV: E=Sophos;i="6.00,228,1681171200"; d="scan'208";a="7799470" Received: from aer-iport-nat.cisco.com (HELO aer-core-5.cisco.com) ([173.38.203.22]) by aer-iport-3.cisco.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jun 2023 06:31:56 +0000 Received: from archlinux-cisco.cisco.com ([10.61.198.236]) (authenticated bits=0) by aer-core-5.cisco.com (8.15.2/8.15.2) with ESMTPSA id 3596VIDv055061 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 9 Jun 2023 06:31:55 GMT From: Ariel Miculas To: rust-for-linux@vger.kernel.org Cc: Ariel Miculas Subject: [PATCH 63/80] rust: alloc: add from_iter_fallible for Vec Date: Fri, 9 Jun 2023 09:31:01 +0300 Message-Id: <20230609063118.24852-64-amiculas@cisco.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230609063118.24852-1-amiculas@cisco.com> References: <20230609063118.24852-1-amiculas@cisco.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Authenticated-User: amiculas X-Outbound-SMTP-Client: 10.61.198.236, [10.61.198.236] X-Outbound-Node: aer-core-5.cisco.com Precedence: bulk List-ID: X-Mailing-List: rust-for-linux@vger.kernel.org Signed-off-by: Ariel Miculas --- rust/alloc/vec/mod.rs | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/rust/alloc/vec/mod.rs b/rust/alloc/vec/mod.rs index 2ca945f7eb9b..b755cf0b936c 100644 --- a/rust/alloc/vec/mod.rs +++ b/rust/alloc/vec/mod.rs @@ -649,6 +649,16 @@ pub fn try_with_capacity(capacity: usize) -> Result { pub unsafe fn from_raw_parts(ptr: *mut T, length: usize, capacity: usize) -> Self { unsafe { Self::from_raw_parts_in(ptr, length, capacity, Global) } } + + /// See https://doc.rust-lang.org/std/vec/struct.Vec.html#examples-31 + #[stable(feature = "rust1", since = "1.0.0")] + pub fn from_iter_fallible(iter: impl Iterator) -> Result, TryReserveError> { + let mut vec = Vec::new(); + for value in iter { + vec.try_push(value)?; + } + Ok(vec) + } } impl Vec { -- 2.40.1